IrishCentral.com has put together a list of the top 100 common Irish surnames with a little explanation of where these names come from. Whether you're looking to trace your family crest or trying to trace your family roots this list will point you in the right direction.

From Aherne to Whelan here is this top 100 Irish names: Aherne - (Ó hEachtighearna/Ó hEachthairn) (each, steed tightearna, lord). Originally Dalcassian, this sept migrated from east Clare to Co. Cork. In County Waterford the English name Hearn is a synonym of Hearn.

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